2169604 has 6 divisors (see below), whose sum is σ = 3796814. Its totient is φ = 1084800.

The previous prime is 2169571. The next prime is 2169617. The reversal of 2169604 is 4069612.

It can be written as a sum of positive squares in only one way, i.e., 2096704 + 72900 = 1448^2 + 270^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271197 + ... + 271204.

2^2169604 is an apocalyptic number.

It is an amenable number.

2169604 is a deficient number, since it is larger than the sum of its proper divisors (1627210).

2169604 is a wasteful number, since it uses less digits than its factorization.

2169604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542405 (or 542403 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2169604 is about 1472.9575689747. The cubic root of 2169604 is about 129.4573832529.

The spelling of 2169604 in words is "two million, one hundred sixty-nine thousand, six hundred four".